Description : 8PCS Drill and Drive Bit Set with 1pcs right angle drill adapter Size : 1 / 4 x 1 / 4 x 65mm length : 1 / 4 & quot ; shank can be converted to 6 . 35mm square head . 3 / 8 x 1 / 4 x 65 . 8mm length : 1 / 4 & quot ; shank can be converted to 9 . 4mm square head . 1 / 2 x 1 / 4 x 68mm length : 1 / 4 & quot ; shank can be converted to 12 . 6mm square head . Right angle drill attachment , 1 / 4 & quot ; Hex shaft screwdriver extension , It &# 39 ; s good replacement for wrench and power drill , rechargeable drill or manual wrench . Package Includes : 1 X 105 Degree Right Angle Angle Drill Adapter 4 X ( 1 / 4 & quot ; Hex Shank to 1 / 4 & quot ; Socket ) socket Adapter 2 X ( 1 / 4 & quot ; Hex Shank to 3 / 8 & quot ; Socket ) socket Adapter 2 X ( 1 / 4 & quot ; Hex Shank to 1 / 2 & quot ; Socket ) socket Adapter : Conversion : 1inch = 2 . 54cm , 1cm = 0 . 393inch Please allow slightly 0 - 1cm difference due to manual measurement . Colors can appear different depending on light and how the listing is viewed . Thanks for your understanding and attention . Wish you a pleasant shopping experience !